benchmark: fix various problems

[ust.git] / tests / benchmark / bench.c

diff --git a/tests/benchmark/bench.c b/tests/benchmark/bench.c
index ec08130d764e8d5001a7836ab45ec470fa5b1fd1..bc6a389742de0bf89cf376c2b67419565fa04230 100644 (file)
--- a/tests/benchmark/bench.c
+++ b/tests/benchmark/bench.c
@@ -11,24 +11,22 @@
 #include <unistd.h>
 #include <sched.h>
 #include <ust/marker.h>
+#include <time.h>
 
 static int nr_cpus;
 static unsigned long nr_events;
-pthread_mutex_t        mutex = PTHREAD_MUTEX_INITIALIZER;
 
 void do_stuff(void)
 {
        int v;
        FILE *file;
-       int lock;
 
        v = 1;
 
-       lock = pthread_mutex_lock(&mutex);
-       file = fopen("/tmp/bench.txt", "a");
+       file = fopen("/dev/null", "a");
        fprintf(file, "%d", v);
        fclose(file);
-       lock = pthread_mutex_unlock(&mutex);
+       time(NULL);
 
 #ifdef MARKER
        trace_mark(ust, event, "event %d", v);
@@ -47,7 +45,6 @@ void *function(void *arg)
        return NULL;
 }
 
-
 void usage(char **argv) {
        printf("Usage: %s nr_cpus nr_events\n", argv[0]);
 }